Foamed cover composition

ABSTRACT

A foamed cover composition made by blending and emitting, from a foam generator, a foamed composition comprising a thickener, a cationic surfactant, a waste filler, and if desired, an additive to effect desired sustained release or sustained acting characteristics.

United States Patent [191 Eron Feb. 5, 1974 [54] FOAMED COVERCOMPOSITION 3,067,542 12/1962 OBrien 47/9 3,017,720 H1962 Busch 47/9[76] Inventor: Robert E. Eron, 3375, 34th St. N., 3 480018 11 1969 Fh-ld. 131 140 St. Petersburg Fla. 33713 ane 1 C [22] Filed: Nov. 1, 1971Primary ExaminerAllan Lieberman pp NO 194 3 Attorney, Agent, orFirmStefan M. Stein [52] US. Cl 106/122, 47/2, 47/9, [57] ABSTRACT 47 6A foamed cover composition made by blending and 51 Int. Cl. C08b 25/00,C08b 27/02 emitting, from a foam generator, a foamed p [58] Field ofSearch 106/122; 47/2, 9, DIG. 6 tion comprising a thickener, a cationicrf tan a waste filler, and if desired, an additive to effect de- 5References Cited sired sustained release or sustained actingcharacteris- UNITED STATESPATENTS tlcs- 6 Claims, No Drawings 3/1959Thiegs et a]. 47/9 l FOAMED COVER COMPOSITION BACKGROUND OF THEINVENTION 1. Field of the Invention This invention relates to a foamedcover composition and more particularly to a composition which, afterbeing fed through a foam generator of the type such as disclosed incopending application, Ser. No. 771,704, filed Oct. 30, 1968, and spreadon a surface, effects a stable foamed cover composition over saidsurface. Dependent upon the particular fillers and additives utilizedtherein, unique sustained releasing or sustaining acting abilities mayalso be imparted thereto.

2. Description of the Prior Art In many techniques, there is a need fora cover composition which is inexpensive, protective, porous and,dependent upon the technology, of prolonged life, yet eventuallyself-disintegrating, or stable, or rigid, or decorative, or soundabsorptive, or similar additional attributes. For example, in highwayconstruction,-straw or hay has been utilized to protect shoulders andslopes adjacent thereto until there is growth of the planted grass seed.The straw or hay prevents erosion of the shoulders andadjacent slopes bywind and rain, and retains ambient moisture, yet eventually decomposesand actually acts as a compost for aiding in growth of the planted grassseed. In roof construction, gravel is spread over the sheet roofing andtar to thereafter protect them against the deleterious ultra violet raysof the sun. In weed control, various mulching matter such as bark, pineneedles, and shredded wood is spread between plants to discourage thegrowth of weeds and also to retain moisture around the roots of theplants. In sewage treatment, the solid matter is filtered anddeodorized, then dried and pulverized for sale as organic fertilizerwhich is spread around plants to aid in their growth.

SUMMARY OF THE INVENTION Objectives An object of this, invention is toprovide an unique cover composition.

Another object is to provide a cover composition which has a foamstructure of light weight.

Still another object is to provide a cover composition which has afibrous structure of surprising strength.

A further object is to provide a cover composition which utilizesinexpensive and frequently waste material as filler.

A still further object is to provide a cover composition to whichingredients may be added to achieve unique and prolonged relapse orprolonged acting characteristics.

Another object is to provide a cover composition which may act as aprotective coat for a predetermined period of time. 1

Another object is to provide a cover composition which may be applied ata distance from the surface to be covered.

Another object is to provide a cover composition which-may be designedto eventually deteriorate or degrade into a beneficial agent either tothe surface being covered or to adjacent or undersurface objects.

Another object is to provide a cover composition which is self-adherentto the surface being covered.

BROAD STATEMENT OF INVENTION It has now been found that a unique covercomposition can be synthesized by first dissolving a thickener, such asan anionic heteropolysaccharide produced by the fermentation of acarbohydrate by the bacterium xanthomonas campes'tris, in a solvent,such as ethyl or propyl alchol.. Then a slurry of a cationic quanternaryammonium compound, such as a dialkyl phenyl trimethyl ammonium chloride,is made and the thickener solution and the cationic slurry are blendedin a foam generator, such as the generator described in copending patentapplication, Ser. No. 771,704, filed Oct. 30, 1968, along with a fillerand if desired, an additive, to

effect certain characteristics, as will be illustrated, hereinafter. Thestream of foam emitted from the generator is then directed to thesurface to be covered for a foam spray'application. The final product oncollapse becomes a webbed, lightweight dry blanket or porous web cake. I

The thickener concentration in theemitted foam should be 0.005 to 20percent by weight.

The cationic may comprises dimethyl 'dihydrogenated tallow quaternary,stearyl dimethyl benzyl ammonium chloride, alkyl methylisoquinoliniumchloride, cetyl dimethyl ethyl ammonium bromide, cetyl dimethyl benzylammonium chloride, cetyl trimethyl ammonium bromide, n-alkyl trimethylammonium chloride, di-coco dimethyl ammonium chloride, di-stearyldimethyl ammonium chloride, N-cetyl-N-ethyl mor pholinum ethosulfate (35percent aqueous solution), alkyldimethylbenzylammonium chloride,alkyldimethylethylbenzyl ammonium chloride, dimethyl benzyl laurylammonium chloride, di-isobutyl cresoxy ethoxy ethyl dimethyl benzylammonium chloride, di-isobutyl phenoxy ethoxy ethyl dimethyl benzylammonium chloride, methyl dodecyl benzyl trimethyl ammonium chloride andmethyl dodecyl xylene bis('trimethyl ammonium chloride) N-alkyl(C C Cdimethyl benz y l ammonium chloride, alkyl dimethyl dichloro benzylammonium chloride, alkyl isoquinolinium bromide, alkenyl dimethyl ethylammonium bromide, alkyl dimethyl hydroxyethyl ammonium bromide, stearylquaternary ammonium compound, fatty glyoxalidinium chloride, coco fattydialkyl benzyl ammonium chloride. The concentration in the emitted foammay range from about 0.5 to 5 percent by weight.

With respect to the tiller, it may comprise a clay phosphate slime, coaldust, precipitated smoke stack effluent, fly ash, industrial and miningeffluents, slaughterhouse effluent, solids from sewage treatment plants,animal and bird manure, pulverized garbage, mulch, muck, peat, filtermud, chopped weeds or grass or straw or bagasse or stalks or weeds orbrush. The concentration of the tiller may range from 10 to 50 percentby weight.

With respect to the additives that may be added, these may comprisecement, epoxy resin, gel forming agents, insecticides, herbicides,deliquescent agents, hygroscopic agents, and neutralizers.

The concentration of these may range from 0.5 to 1.0 percent by weight.

The invention accordingly comprises the several steps and the relationof one or more of such steps with respect to each of the others, and thecomposition possessing the features, properties, and the relation ofcomponents, which are exemplified in the following detailed disclosureand the scope of the invention will be indicated in the claims.

DETAILED DESCRIPTION For a fuller understanding of the nature andobjects of the invention, reference should be had to the followingdetailed examples."

EXAMPLE I 0.05 parts by weight of a thickening agent, in this instance,an anionic heteropolysaccharide produced by the fermentation of .acarbohydrate by the bacterium, xanthomonas campestris, (such asBiopolymer XB-23 manufactured by General Mills, Minneapolis, Minnesota)are dissolved in parts by weight of ethyl alchol.

0.5 parts by weight of a quaternary cationic compound, in this instance,a mixtureof methyl dodecyl benzyl trimethyl ammonium chloride and methyldodecyl xylylene bis-trimethyl ammonium chloride (Hyamine 2389manufactured by Rohn & Haas, Philadelphia, Pennsylvania) are slurried in10 parts by weight of water.

The above polysaccharide alcohol solution and the aqueous cationicslurryare then fed to a foam generator of the type described in copendingpatent application Ser. No. 771,704, filed Oct. 30, 1968, along with 100parts by weight of a percent by weight slurry of phosphate slime from aphosphate mining operation. The resultant foam is applied via the nozzleof the generator to a grass seeded slope troubled by erosion duringrain. The slope is observed andeven during a heavy pounding rain, thereis substantially no erosion. The composition applied, after drying, hasa fibrous foam structure which resembles cellulose sponge. It absorbsand retains some ofthe rain. The grass seed planted under said covercomposition eventually emerges through the fibrous foam-like structureand the grass seedling seem to thrive on the cover composition. In time,the composition seems to degrade in favor of the matured grass.

EXAMPLE u 1.0 parts by weight of a thickener, in this instance, ananionic heteropolysaccharide produced by the fermentation of acarbohydrate by the bacterium, xanthomonas campestris, are dissolved in10 parts by weight of alcohol.

2.0 parts by weight of distearyl dimethyl ammonium chloride (Arquad2I-IT manufactured by Armour and Company, Chicago, Illinois) areslurried in 10 parts of weight water.

the alcohol solution and the slurry are blended together and fed to afoam generator along with 100 parts by weight of a 10 percent by weightslurry of chicken manure-earth. Theresultant foam is applied to a bed ofroses. No odor will be detected for the foam structure apparentlydeodorizes the manure. The rose plants are not harmed as would beexpected with such strong manure as'chicken manure. Instead, the plantsseem to provide an overabundance of roses thereafter. Also the foam whendried, acts as a mulch and helps to stem 4 Weed growth, retain moistureand control temperatures.

EXAMPLE III 2.0 parts by weight ofa thickener, in this instance, ananionic heteropolysaccharide produced by the fermentation of acarbohydrate by the bacterium, xanthomonas campestris, are dissolved in10 parts by weight acetone. 1

3.0 parts by weight of fatty glyoxalidinium chloride (Quatrene C56manufactured by Textilana Corporation, Hawthorne, California) areslurried in 10 parts by weight water.

The alcohol solution and the slurry are blended together and fed to afoam generator along with parts by weight of a 5 percent by weightslurry of solids from a sewage treatment plant. The resultant foamemitted from the generator is spread over a field of soybean plants. Thefoam eventually dries to a thick gel-like cover around each plant. Weedgrowth seems to be discouraged and the soybean plants grow as if theyhas been fertilized with organic nitrogen fertilizer.

It should be evident from the above that a unique cover composition hasnow. been devised.

It will thus be seen that the objects set forth above, among those madeapparent from the preceding description, are efficiently attained and,since certain changes may be made in carrying out the above method andin the compounds set forth without departing from the scope of theinvention, it is intended that all matter contained in the abovedescription shall be interpreted 'as illustrative and not ina limitingsense.

duced by the fermentation of a carbohydrateby the bacterium Xanthomonascampestris, a slurry of 0.5 to 5.0 percent of a cationic surfactantselected from the group consisting of dimethyl dihydrogenatedtallowquaternary, stearyl dimethyl benzyl ammonium chloride, alkylmethylisoquinolinium chloride, cetyl dimethyl ethyl ammonium bromide,cetyl dimethyl benz'yl ammonium chloride, cetylv trimethyl ammoniumbromide, n-alkyl trimethyl ammonium chloride, dicoco dimethyl ammoniumchloride, di-stearyl dimethyl ammonium chloride, N-cetyl-N-ethylmorpholinum ethosulfate (35 percent aqueous solution),alkyldimethylbenzylammonium chloride, alkyldimethylethylbenzyl ammoniumchloride, dimethyl benzyl lauryl ammonium chloride, di-isobutyl cresoxyethoxy ethyl dimethyl benzyl ammonium chloride, di-isobutyl phenoxyethoxy ethyl dimethyl benzyl ammonium chloride, methyl dodecyl benzyltrimethyl ammonium chloride and methyl dodecyl xylene bis(trimethylammonium chloride) N-alkyl (Cig, CH. Cm) dimethyl benzyl ammoniumchloride, alkyldimethyl dichloro benzyl ammonium chloride, alkylisoquinolinium bromide, ulkenyl dimethyl ethyl ammonium bromide, alkyldimethyl hydroxyethyl ammonium bromide, stearyl quaand to 50 percent ofa waste filler consisting of a member of the class consisting of clay,phosphate slime, coal dust, preciptated smoke stack effluent, fly ash,industrial and mining effluents, slaughterhouse effluent, solids fromsewage treatment plants, animal and bird manure, pulverized garbage,mulch, muck, peat, filter mud, chopped weeds or grass or straw orbagasse or stalks or weeds or brush: blended, foamed and emitted from afoam generator before application as a cover.

2. The foamed cover composition of claim 1 wherein said cationicconsists of 0.5 to 5.0 percent by weight in its emitted form of amixture of methyl dodecyl benzyl trimethyl ammonium chloride and methyldodecyl xylylene bistrimethyl ammonium chloride.

3. The foamed cover composition of claim 1 wherein said thickenerconsists of 0.005 to 2.0 percent by weight in its emitted form ofBiopolymer XB 23 produced by the fermentation of a carbohydrate by thebacterium Xanthomonas campestris and said cationic consists of 0.5 to5.0 percent by weight in its emitted form of a mixture of methyl dodecylbenzyl trimethyl ammonium chloride and methyl dodecyl xylylenebistrimethy] ammonium chloride, and said filler comprises 10 to 50percent by weight of clay in its emitted form.

4. The foamed cover composition of claim 1 wherein said thickenerconsists of 0.005 to 2.0 percent by weight in its emitted form ofBiopolymer XB-23 produced by the fermentation of a carbohydrate by thebacterium Xanthomonas campestris and said cationic consists of 0.5 to5.0 percent by weight in its emitted form of a mixture of methyl dodecylbenzyl trimethyl ammonium chloride and methyl dodecyl xylylenebistrimethyl ammoniumchloride, and said filler comprises 10 to 50percent by weight phosphate slime in its emitted form.

5. The foamed cover composition of claim 1 wherein said thickenerconsists of 0.005 to 2.0 percent by weight in its emitted form ofBiopolymer XB-23 produced by the fermentation of a carbohydrate by thebacterium Xanthomonas campestris and said cationic consists of 0.5 to5.0 percent by weight in its emitted form of a mixture of methyl dodecylbenzyltrimethyl ammonium chloride and methyl dodecyl xylylenebistrimethyl ammonium chloride, and said filler comprises 10 to 50percent by weight of solids from sewage treatment plants.

form.

UNITED STATES PATENT OFFICE CERTIFICATE OF CORRECTION Patent No. ,3 5 Dd February 5, 1974 Robert E. Eron Inventor(s) Y It is certified thaterror appears in the above-identified patent and that said LettersPatent are hereby corrected as shown below:

Column 2, line 11, "Xanthomonas campestris" should read Xanthomonascampestr'is Column 3, line 18,

"Xanthomonas campestris" should read Xanthomonas campestris lines 52-53,"Xanthomonas campestris" should read Xanthomonas campestris lines 56-57,"of weight water" should read by weight of water Column 4, lines 7-8,"Xanthomonas campestris" should read Xanthomonas campestris Signed andsealed this 1st day of October 1974.

(SEAL) Attest:

C. MARSHALL DANN Attesting Officer USCOMM'DC 60370-P69 uwsr aovznunzwrPRINTING omen 93 0

2. The foamed cover composition of claim 1 wherein said cationicconsists of 0.5 to 5.0 percent by weight in its emitted form of amixture of methyl dodecyl benzyl trimethyl ammonium chloride and methyldodecyl xylylene bistrimethyl ammonium chloride.
 3. The foamed covercomposition of claim 1 wherein said thickener consists of 0.005 to 2.0percent by weight in its emitted form of Biopolymer XB-23 produced bythe fermentation of a carbohydrate by the bacterium Xanthomonascampestris and said cationic consists of 0.5 to 5.0 percent by weight inits emitted form of a mixture of methyl dodecyl benzyl trimethylammonium chloride and methyl dodecyl xylylene bistrimethyl ammoniumchloride, and said filler comprises 10 to 50 percent by weight of clayin its emitted form.
 4. The foamed cover composition of claim 1 whereinsaid thickener consists of 0.005 to 2.0 percent by weight in its emittedform of Biopolymer XB-23 produced by the fermentation of a carbohydrateby the bacterium Xanthomonas campestris and said cationic consists of0.5 to 5.0 percent by weight in its emitted form of a mixture of methyldodecyl benzyl trimethyl ammonium chloride and methyl dodecyl xylylenebistrimethyl ammonium chloride, and said filler comprises 10 to 50percent by weight phosphate slime in its emitted form.
 5. The foamedcover composition of claim 1 wherein said thickener consists of 0.005 to2.0 percent by weight in its emitted form of Biopolymer XB-23 producedby the fermentation of a carbohydrate by the bacterium Xanthomonascampestris and said cationic consists of 0.5 to 5.0 percent by weight inits emitted form of a mixture of methyl dodecyl benzyl trimethylammonium chloride and methyl dodecyl xylylEne bistrimethyl ammoniumchloride, and said filler comprises 10 to 50 percent by weight of solidsfrom sewage treatment plants.
 6. The foamed cover composition of claim 1wherein said thickener consists of 0.005 to 2.0 percent by weight in itsemitted form of Biopolymer XB-23 produced by the fermentation of acarbohydrate by the bacterium Xanthomonas campestris and said cationicconsists of 0.5 to 5.0 percent by weight in its emitted form of amixture of methyl dodecyl benzyl trimethyl ammonium chloride and methyldodecyl xylylene bistrimethyl ammonium chloride, and said filtercomprises 10 to 50% by weight pulverized garbage in its emitted form.